This quiz will test your knowledge of key concepts in data visualization and data science. You will be asked questions about visualization best practices, different chart types, and commonly used Python libraries like Matplotlib, Seaborn and Plotly.

The number of attempts remaining is 5

1 / 30

Which Excel function creates a pivot table?

A) =SUMMARY()

B) =TRANSPOSE()

C) =ANALYZE()

D) =PIVOT()

2 / 30

How do you set the width of bars in a seaborn barplot?

A) set_width(0.8)

B) width=0.8

C) bar_width=0.8

D) width_bar=0.8

3 / 30

How do you add a grid to a matplotlib plot?

A) plt.gridlines(True)

B) plt.set_grid(True)

C) plt.grid(True)

D) plt.add_grid(True)

4 / 30

Which attribute sets axis line properties in Plotly layout?

A) layout.xaxis.showline/layout.yaxis.showline

B) set_axis_lines

C) show_axis_lines

D) axis_lines

5 / 30

Which Plotly method updates axes properties (like ranges) non-uniformly?

A) axes_update()

B) fig.update_axes()

C) update_axlims()

D) fig.update_xaxes()

6 / 30

How would you save a plot as an image file in matplotlib?

A) plt.export('filename.png')

B) plt.save('filename.png')

C) plt.savefig('filename.png')

D) plt.to_file('filename.png')

7 / 30

Which seaborn function is used to draw a boxplot?

A) sns.draw_box()

B) sns.boxplot()

C) sns.box()

D) sns.plot_box()

8 / 30

Which attribute sets the plot title in Plotly?

A) title

B) set_title

C) name

D) plot_title

9 / 30

How do you set the size of a figure in matplotlib?

A) plt.figure(figsize=(width height))

B) plt.set_size(width height)

C) plt.size(width height)

D) plt.resize(width height)

10 / 30

Which parameter sets the linewidth in Matplotlib?

A) linewidth

B) width_line

C) line_width

D) set_width()

11 / 30

What principle states that graphs should maximizeink ratio (data-to-ink ratio)?

A) Visual hierarchy principle

B) Chartjunk principle

C) Lie Factor principle

D) Tufte's data-ink maximization principle

12 / 30

What is the purpose of a heatmap in data visualization?

A) To plot time series data

B) To visualize data density or intensity across a 2D space

C) To draw 3D plots

D) To create interactive plots

13 / 30

Which function in pandas is used to plot data directly from a DataFrame?

A) df.visualize()

B) df.plot()

C) df.draw()

D) df.graph()

14 / 30

What type of chart is best for visualizing categorical variables?

A) Pie chart

B) Scatter plot

C) Bar chart

D) Line chart

15 / 30

How do you set the color of bars in a seaborn barplot?

A) bar_color='blue'

B) color='blue'

C) color_bar='blue'

D) set_color('blue')

16 / 30

What is overplotting in data visualization?

A) When the x and y axes are not labeled

B) When the legend is missing

C) When data points are plotted on top of each other

D) When there are too many colors in a plot

17 / 30

Which Plotly class is used to create bar charts?

A) BarChart()

B) bar_plot()

C) plotly.graph_objects.Bar()

D) go.Bar()

18 / 30

Which function in seaborn is used to draw a pair plot?

A) sns.draw_pair()

B) sns.pairplot()

C) sns.pair()

D) sns.plot_pair()

19 / 30

How do you save a figure without displaying it in Matplotlib?

A) plt.save('figure.png')

B) plt.savefig('figure.png')

C) plt.to_file('figure.png')

D) plt.export('figure.png')

20 / 30

How do you display a Plotly figure inline in a Jupyter notebook?

A) fig.display()

B) fig.show() - Displays inline by default in Jupyter

C) plot(fig)- Displays inline

D) show_inline(fig)

21 / 30

What type of chart is best for showing data trends over time?

A) Scatter plot

B) Line chart

C) Bar chart

D) Pie chart

22 / 30

Did you subscribe to our YouTube channel Codancis ?

A) No

B) Yes

C) Already subscribed

D) Don't use YouTube

23 / 30

How do you save a Plotly figure as HTML?

A) export_html('fig.html')

B) fig.to_html('fig.html')

C) fig.save_as_html('fig.html')

D) fig.write_html('fig.html')

24 / 30

Which function in matplotlib is used to create a scatter plot?

A) plt.scatter_plot()

B) plt.draw_scatter()

C) plt.plot_scatter()

D) plt.scatter()

25 / 30

Which library in Python is primarily used for plotting data?

A) pandas

B) scipy

C) numpy

D) matplotlib

26 / 30

What type of chart is best for showing proportions within a whole?

A) Scatter plot

B) Line chart

C) Bar chart

D) Pie chart

27 / 30

What is whitespace (white space) in data visualization?

A) The margins around the page

B) The background color of the plot

C) The spacing between text characters

D) Empty areas of the page or slide that separate individual graphics or groups of information

28 / 30

How do you set the title of a plot in matplotlib?

A) plt.set_title('Title')

B) plt.title('Title')

C) plt.caption('Title')

D) plt.heading('Title')

29 / 30

What is facetting in data visualization?

A) Dividing the plot area into panels to show subsets of data

B) Scaling the plot for different devices

C) Relabeling the axes and legends

D) Combining multiple plots into subplots

30 / 30

Which function is used to create a scatter plot in Plotly?

A) plot.scatter()

B) go.Scatter()

C) scatter_plot()

D) plotly.graph_objects.Scatter()

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